ᐅ Newly built apartment (KfW-55 standard) cannot be cooled below at least 25 °C.
Created on: 21 Aug 2022 08:52
F
Forsberg21
Hello,
I have rented out a new apartment (built in 2021, KfW-55 standard). The tenant recently informed me that since spring, the indoor temperatures have consistently been at least 25°C (77°F) or higher. On warm days, it even reaches up to 28°C (82°F), although she keeps all the aluminum shutters closed during the day (no home office). Cross-ventilation at night doesn’t bring the temperature below 25°C (77°F). She is asking for advice on how to cool the apartment down a bit during the summer.
What could be causing this?
The apartment has a decentralized ventilation system and underfloor heating, which is naturally turned off in summer.
The apartment faces southwest and has large window areas.
Could it be that the ventilation system continuously brings in warm outside air on hot days, causing the temperature to rise so much?
Should the ventilation system be turned off during the day?
But why doesn’t the apartment cool down at night, even though there seems to be cross-ventilation and the nights are cooler?
Do you have any tips? I am a bit overwhelmed.
Best regards,
Robert
I have rented out a new apartment (built in 2021, KfW-55 standard). The tenant recently informed me that since spring, the indoor temperatures have consistently been at least 25°C (77°F) or higher. On warm days, it even reaches up to 28°C (82°F), although she keeps all the aluminum shutters closed during the day (no home office). Cross-ventilation at night doesn’t bring the temperature below 25°C (77°F). She is asking for advice on how to cool the apartment down a bit during the summer.
What could be causing this?
The apartment has a decentralized ventilation system and underfloor heating, which is naturally turned off in summer.
The apartment faces southwest and has large window areas.
Could it be that the ventilation system continuously brings in warm outside air on hot days, causing the temperature to rise so much?
Should the ventilation system be turned off during the day?
But why doesn’t the apartment cool down at night, even though there seems to be cross-ventilation and the nights are cooler?
Do you have any tips? I am a bit overwhelmed.
Best regards,
Robert
Nutshell schrieb:
The computer has a 750-watt power supply but usually only consumes about 500 watts, as you estimated yourself.
I can’t give up 144 frames, to stay competitive in the esports rankings.
That generates quite a bit of heat after several hours, and the drywall walls no longer absorb any of it—it just gets hot. No matter how much I ventilate at night, the heat only lasts a few hours before it becomes uncomfortable.
A server cabinet in the basement is not an option.
1. Because I don’t have a basement
2. Because DisplayPort cables don’t come in 20-meter lengths (about 66 feet)
3. Because it’s not a server, just a regular tower
So none of that works for me :> Just put your tower outside on the windowsill—you can make a bracket yourself. Or place it on the floor under the window with a small pop-up tent as rain protection. There are also flat HDMI cables that can run through window seals, and Bluetooth mouse and keyboard signals pass through the glass. You’d just need to bring the computer back inside in the evening.
W
WilderSueden1 Sep 2022 22:02Nutshell schrieb:
2. because a DisplayPort cable is not 20 meters longThey do exist. At our company, we have a very long one for the meeting room, although it’s more around 10m (33 feet). But there are actually some that are 20m (66 feet) long.But how long do you game? 2-3 hours, then you would have about 1-1.5 kWh of heat generated. You’d need to make sure that heat is properly dissipated. Or is this for professional use? 😉
That’s why my PC will be moved to the basement next year. I really couldn’t bring myself to play games for even a minute all summer. It was always too warm, and the graphics card just blows too much heat into the room.
My work laptop with two monitors uses almost 80W, and combined with me as a heat source, the room also gets noticeably warm.
My work laptop with two monitors uses almost 80W, and combined with me as a heat source, the room also gets noticeably warm.
G
Georgian20199 Sep 2022 22:15Nutshell schrieb:
Cool, that sounds normal.
How about heating and hot water for you? How many kWh per year?Just recently read the meters: electricity 1,806 kWh and gas 1,000 m³ (about 10,000 kWh), with gas used for cooking and also a gas fireplace. Additionally, there is solar thermal on the roof, so in summer we have an unlimited supply of hot water that goes unused.Similar topics